US$ 184.97
US-milled iron filings at 40-60 mesh in a 250-gram translucent screw-cap bottle
this seven-piece set traces fetal delivery from engagement through crowning to placental separation for labor and delivery teaching
áPack of 2
U-magnet and brass-rail apparatus that demonstrates the motor effect
7.9" Polypropylene Stirring Rods with Rounded Ends, 7mm, 12-Pack Racks & Stands_Pipette & Burette Stands US-milled iron filings at 40-60Twelve pack of 7. 9 inch polypropylene stirring rods with rounded ends, chemical resistant and heat tolerant for general purpose mixing of classroom laboratory solutions.
US$ 184.97
US$ 32.30
US$ 134.17
US$ 107.99